题目

茶壶、锅炉液位计等是____原理的应用。奥托·格里克所做的_____实验证明了大气压强的存在。滑动变阻器是通过改变电阻线接入电路中的______来实现变阻的。 答案：【答案】连通器 马德堡半球 长度 【解析】[1]连通器的特点：上端开口下端连通的容器，茶壶、锅炉液位计是利用连通器的原理制成的。[2]马德堡半球实验有力的证明了大气压的存在。[3]滑动变阻器的使用原理是通过改变连入电路中的电阻线的长度来改变电阻的大小。阅读短文，按照短文后的要求答题。请把答案写在答题卡相应位置。（每小题2分，共10分）On a Friday night, a poor young violinist was playing his violin at the entrance （人口）of the subway station. The music was so great that people put some money into his hat.The next day, the violinist came to the entrance again. He put down his hat as usual. Beside the hat was a piece of paper with some words on it:"A George Sang has put an important thing into my hat by mistake. Welcome to claim(认领)if．”After a while a man named George Sang ran here quickly and got back his important thing.The important thing was a lottery ticket(彩票). Sang bought it and won a prize of $500, 000. But when he gave $50 to the violinist for his wonderful music, he threw the lottery ticket, too. The violinist was a college student. That morning, he was going to Vienna for his education. However, when he found the ticket, he canceled the flight and returned to the entrance.He said, "Although I don't have much money, I live happily. If I lose honesty (诚实），1 won't be happy forever.”任务一：写出短文中与下列句子意思相近的句子。1.His hat was put into some money because he played quite well,任务二：根据短文内容，用英语回答问题。2.What was the important thing that George Sang put into the hat?3.What did the violinist do when he found the ticket?4.The young violinist came to the entrance again in order Io return the lottery ticket to George Sang, didn't he?住务三：将短文中的画线部分翻译成中文。5.